JPH07148649A - Polishing device - Google Patents

Abstract

PURPOSE:To provide a polishing device enabling the easy adjustment of a moving range and excellent in workability and safety. CONSTITUTION:A cutter 10 is fixed to a moving table 2 on a frame 4, and this cutter 10 is polished by a rough grinding wheel 11K and a finish-grinding wheel 12K. In the case of polishing, the moving table 2 repeats its reciprocating motion in the directions of arrow marks 92, 93 within a specified moving range. The width control of this moving range is performed on the basis of a position where a detecting bar 20 comes in contact with a detecting switch 8. The timer value X is subtracted from the time of detecting this position, and when this timer value X becomes '0,' the moving table 2 is moved in the reverse direction. Since this timer value X is changed by an adjusting dial 35 on a control panel 4H, the moving range can be easily adjusted only by rotatory-operating the adjusting dial 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a polishing apparatus,
In particular, the present invention relates to a structure of a polishing apparatus capable of easily and accurately adjusting a moving range of an object to be polished with respect to a polishing portion such as a grindstone and having excellent workability and safety.

[0002]

2. Description of the Related Art The outline of a polishing apparatus will be described with reference to FIG. A rail (not shown) is provided on the frame 69, and the moving table 60 is attached so as to be slidable in the directions of arrows 92 and 93 along the rail. The movement of the moving table 60 is controlled by a table moving motor (not shown) rotating in the forward and reverse directions. A blade is placed and fixed on the moving table 60.

On the upper part of the moving table 60, the rough grindstone 11
K and finishing whetstone 12K are located. These rough whetstone 11
K and finishing whetstone 12K are whetstone rotation motors 11 and 12, respectively.
The tool is rotated by and the blade on the moving table 60 is polished. The grindstone rotating motor 11 and the rough grindstone 11K, and the grindstone rotating motor 12 and the finishing grindstone 12K are respectively moved up and down in the directions of arrows 90 and 91 by a grindstone lifting motor (not shown).

When polishing a blade, the rough grindstone 11K is first rotated, and then the grindstone rotation motor 11 and the rough grindstone 11 are rotated.
K is lowered in the direction of arrow 90 to bring the rough whetstone 11K into contact with the blade. In this case, the moving table 60 repeats reciprocating movements in the directions of arrows 92 and 93 by the forward and reverse rotations of the table moving motor. The reciprocating movement of the moving table 60 causes the blade to be polished over its entire length.

When polishing with the rough whetstone 11K is completed, the rough whetstone 11K is raised in the direction of arrow 91, and subsequently the whetstone rotation motor 12 and the finishing whetstone 12K are lowered in the direction of arrow 90. Then, similarly, the finishing table 12K is used for polishing while reciprocating the moving table 60. As described above, the blade is polished by the rough whetstone 11K and the finishing whetstone 12K.

As a conventional example for controlling the reciprocating movement of the moving table 60, there is a polishing apparatus disclosed in Japanese Patent Laid-Open No. 62-228358. This polishing device is shown in FIG.
As shown in FIG. 2, the moving table 60 is fixed to the rack gear 100, and the rack gear 100 includes the pinion gear 1
05 meshes. The pinion gear 105 rotates forward and backward by driving the motor 106. The motor 1
06 is controlled by the control circuit 107.

The movable table 60 is provided with an operating rod 60T, and limit switches 101 and 102 are located at both ends of the movable table 60. The limit switches 101 and 102 are fixed to the frame 108. The limit switches 101 and 102 are located on the orbit of the reciprocating operating rod 60T and detect contact with the operating rod 60T.

For example, when the moving table 60 moves in the direction of arrow 92 from the state shown in FIG. 17, the operating rod 60T
Contacts the limit switch 102. Then, the limit switch 102 is turned on, and this ON signal is sent to the control circuit 1.
It is given to 07. In response to this, the control circuit 107 rotates the motor 106 in the reverse direction to move the moving table 60 in the direction of arrow 93.

Then, when the operating rod 60T contacts the limit switch 101, the control circuit 106 again moves the moving table 60 in the direction of arrow 92. In this way, the moving table 60 repeats reciprocating movements in the directions of arrows 92 and 93 based on the operation of the limit switches 101 and 102 by the operating rod 60T. 17, the grindstone rotation motors 11 and 12, the rough grindstone 11K, the finishing grindstone 12K and the like are omitted.

FIG. 18 shows another conventional polishing apparatus for reciprocating a moving table. This polishing apparatus is provided with a limit switch 64 close to the back surface of the moving table 60. The movement table 60 is changed by switching the limit switch 64.
The reciprocating movement of is controlled. A detector 63 is connected to the limit switch 64, and the detector 63 has V-shaped levers 63a and 63b as shown in the drawing. On the other hand, the moving table 60 has detection bars 61 and 62.
Is provided.

When the movable table 60 moves in the direction of arrow 92 from the state shown in FIG. 18, the kick portion 61F of the detection bar 61 eventually contacts the lever 63a of the detector 63, and the V-shaped levers 63a and 63b are moved to the arrow 92. Push down in the direction.
The limit switch 64 is turned on by the switching of the levers 63a and 63b, a signal is given to the table moving motor through the switching circuit 65, and the moving table 60 moves in the reverse direction, that is, the direction of arrow 93.

Similarly, the kick portion 62F of the detection bar 62 is
When the lever 63b pushes down, the limit switch 64 is turned off, and the moving table 60 moves again in the direction of arrow 92. In this way, the kick portions 61F and 62F of the detection bars 61 and 62 are connected to the lever 63 of the detector 63.
The moving table 60 is pressed by pressing a and 63b.
Reciprocating movement is performed.

The position of the detection bars 61 and 62 can be adjusted. By adjusting the positions of the detection bars 61 and 62, the width of the reciprocating movement of the moving table 60, that is, the moving range can be adjusted. An enlarged view of the detection bar 61 is shown in FIG. An elongated slot 61G for adjustment is provided on the detection bar 61.
Is formed, and the positioning bolt 61N is fastened to the moving table 60 through the adjustment elongated hole 61G. The detection bar 62 has a similar structure.

When adjusting the movement range, the positioning bolt 61N is loosened. When the positioning bolt 61N is loosened, the detection bar 61 moves in the direction of the arrow 9 within the adjustment slot 61G.
It can slide freely in 2, 93 directions. Then, after the detection bar 61 is positioned at a desired position according to the size of the blade, the positioning bolt 61N is tightened to fix the position. The position of the detection bar 62 is adjusted in the same manner.

By thus adjusting the positions of the detection bars 61 and 62, the positions of the kick portions 61F and 62F on the moving table 60 are changed. Kick part 6
The lever 6 of the detector 63 can be adjusted by adjusting the positions of 1F and 62F.
The movement range can be adjusted by controlling the switching positions of 3a and 63b.

[0016]

The conventional polishing apparatus has the following problems. First, with the polishing apparatus shown in FIG. 17, the width of the reciprocating movement of the moving table 60 cannot be adjusted. The size of the blade to be polished varies,
For example, when polishing a relatively small blade, the width of the reciprocating movement of the moving table 60 may be small. Figure 1
Since the width of this reciprocating movement cannot be adjusted with the polishing apparatus of No. 7, the moving table 60 reciprocates within an unnecessarily large range, and there is a problem that the work efficiency deteriorates due to useless movement.

Further, in this polishing apparatus, a blade is attached,
Removal and replacement work must be done within the range of movement. That is, for example, since the work of exchanging the blade is performed in the state as shown in FIG. 16, the workability is deteriorated due to the rough whetstone 11K, the finishing whetstone 12K, etc. close to the moving table 60, and there is a problem that the safety is also poor. is there.

The polishing apparatus shown in FIG. 18 has a detection bar 6
By adjusting the positions 1 and 62, the width of the reciprocating movement of the moving table 60 can be controlled. Therefore, the range of movement can be adjusted depending on the size of the blade, and there is no problem of performing unnecessary movement in an unnecessary range.

However, in this polishing apparatus, as described above,
When adjusting the movement range, first loosen the positioning bolts 61N and 62N of the detection bars 61 and 62 to remove the detection bar 6
After adjusting the positions of 1 and 62, the positioning bolt 61
It is necessary to tighten N and 62N. Therefore, it takes a lot of time to adjust the moving range, and there is a problem that work efficiency is reduced. Further, when adjusting the positions of the detection bars 61 and 62, it is necessary to stop the polishing work and temporarily stop the apparatus, which further lowers the work efficiency.

Therefore, an object of the present invention is to provide a polishing apparatus capable of easily adjusting a moving range and having excellent workability and safety.

[0021]

According to a first aspect of the present invention, there is provided a polishing apparatus comprising: a moving table to which a polishing object is attached; a polishing section for polishing the polishing object attached to the moving table;
In response to a reversal signal from the control unit, the moving direction of the moving table or the polishing unit is switched to the opposite direction, and the driving unit that reciprocates the moving table or the polishing unit within a predetermined moving range, The movement range is entered,
A movement range setting unit that sets a movement range setting value based on the movement range, a reference position detector that detects a reference position of a movement table or a polishing unit, and outputs a reference position detection signal, activated by the reference position detection signal. , A moving amount counting unit that counts the moving amount of the moving table or the polishing unit, and compares the moving range setting value set in the moving range setting unit and the count value of the moving amount counting unit, and both values When the two coincide with each other, a reverse rotation signal is output to the drive unit.

The polishing apparatus according to a second aspect is the polishing apparatus according to the first aspect, wherein the operation start command input through the operation start input section is given to the drive section, and the drive section is given the operation start instruction. At this time, the moving table or the polishing section is moved in the direction toward the reference position.

A polishing apparatus according to a third aspect is the polishing apparatus according to the second aspect, wherein a limit moving time or a limit drive number is set and stored in the control unit, and the control unit causes the drive unit to start the operation. The change time of the measured value from the time when the command is given and the limit movement time, or the change amount of the detected drive number from the time when the operation start command is given to the drive unit becomes equal to the limit drive number. A stop signal is output at a time point, and the drive unit receives the stop signal and stops the movement of the moving table or the drive unit.

A polishing apparatus according to a fourth aspect is the polishing apparatus according to the first aspect, which detects that the moving table or the polishing section is located at the replacement initial position of the object to be polished, and drives the initial position detection signal. Equipped with an initial position detector that outputs to the drive section, the operation stop command input through the operation stop input section is given to the drive section, and when the operation stop instruction is given, the drive section moves to the moving table or drive. It is characterized in that the unit is moved in the direction toward the exchange initial position, and the drive unit stops the movement of the moving table or the drive unit when the initial position detection signal is given.

[0025]

In the polishing apparatus according to the first aspect, the predetermined moving range is input to the moving range setting unit, and the moving range set value is set based on this moving range. Further, the reference position detector detects the reference position of the moving table or the polishing section and outputs a reference position detection signal, and the movement amount counting section is activated by the reference position detection signal to detect the movement amount of the moving table or the polishing section. Count. Then, the moving range setting value set in the moving range setting unit is compared with the count value of the moving amount counting unit, and when the two values match, a reverse rotation signal is output to the drive unit.

As described above, the reverse rotation signal is output according to the movement range setting value set in the movement range setting section, and the movement table or the polishing section moves in the opposite direction. Therefore, by inputting a desired movement range through the movement range setting unit, the movement range can be freely controlled.

In the polishing apparatus according to the second aspect, the operation start command input through the operation start input unit is given to the drive unit, and when the drive start command is given, the drive unit moves the moving table or the polishing unit. Move it toward the reference position.

Thus, only by inputting the operation start command, the moving table or the polishing section moves toward the reference position, and after reaching the reference position, reciprocates within the predetermined movement range as described above.

In the polishing apparatus according to the third aspect, the limit moving time or the limit drive number is set and stored in the controller. Then, the control unit, the change time and the limit movement time of the measured value from the time when the operation start command is given to the drive unit,
Alternatively, the stop signal is output when the change amount of the detected drive number from the time when the operation start command is given to the drive unit becomes equal to the limit drive number. The drive unit receives the stop signal and stops the movement of the moving table or the drive unit.

After the operation start command is given in this way,
When the limit movement time or the limit drive number is reached, the movement of the movement table or the drive unit is stopped.

In the polishing apparatus according to the fourth aspect, an initial position for detecting that the moving table or the polishing unit is located at the replacement initial position of the object to be polished and outputting an initial position detection signal to the drive unit. It is equipped with a detector. Further, the operation stop command input through the operation stop input unit is given to the drive unit, and when the operation stop command is given, the drive unit moves the moving table or the drive unit in the direction toward the replacement initial position. Then, the drive unit stops the movement of the moving table or the drive unit when the initial position detection signal is given.

By simply inputting the operation stop command in this way, the moving table or the drive unit stops at the replacement initial position.

[0033]

【Example】

[First Embodiment] A first embodiment of the polishing apparatus according to the present invention will be described with reference to the drawings. The outline of the apparatus is shown in FIG.
A movable table 2 which is movable in the directions of arrows 92 and 93 is attached to the frame 4. The movable table 2 is provided with a blade mount 6, and the blade 10 which is an object to be polished is mounted and fixed to the blade mount 6.

The moving table 2 is adapted to move along a rail (not shown) on the frame 4. As shown in the drawing, a rack gear 7 is provided on the bottom surface of the moving table 2, and a pinion gear 24 fixed to the shaft of the feed motor 22 is meshed with the rack gear 7. That is, the moving table 2 moves in the directions of arrows 92 and 93 according to the rotation of the feed motor 22. The feed motor 22 rotates in the opposite direction when a reverse rotation signal is given.

A detection bar 20 is fixed to the bottom surface of the moving table 2 and moves integrally with the moving table 2. On the other hand, the frame 4 is provided with a reference position detection switch 8 which is a reference position detector, and detects the detection bar 20. The reference position detection switch 8 is provided at a position for detecting a substantially central position (reference position) of the reciprocating moving table 2, and outputs a reference position detection signal when the detection bar 20 is detected.

The frame 4 is also provided with an initial position detection switch 5 which is an initial position detector, and outputs an initial position detection signal when the detection bar 20 is detected.
The initial position detection switch 5 is provided at a position for detecting an end portion (replacement initial position) of the moving table 2 that reciprocates. The reference position detection switch 8 and the initial position detection switch 5 are limit switches.

On the upper part of the moving table 2, grindstones 31, 32 are provided.
Is located, and grindstone rotation motors 11 and 12 are provided in the grindstone bases 31 and 32. Then, the grindstone rotating motors 11 and 12 are respectively provided with rough grindstones 11 which are polishing parts.
K and a finishing grindstone 12K are connected, and the grindstone rotating motors 11 and 12 rotate to grind the blade 10.

Further, the grindstone bases 31 and 32 are lift motors 3.
By 3, 34, it can be moved up and down in the directions of arrows 90, 91. The rotating shafts of the elevating motors 33 and 34 are formed as elevating screws 33J and 34J, and these elevating screws 33J and 34J are screwed into nuts 31W and 32W integrally fixed to the grindstone bases 31 and 32, respectively. Lifting screw 33J,
By screwing 34J and the nuts 31W and 32W, the whetstone bases 31 and 32 are controlled to move up and down in accordance with the drive of the lifting motors 33 and 34.

FIG. 2 shows the operation panel 4H of the polishing apparatus shown in FIG. Turn on the automatic operation button 36 as the operation start input section
When it is N, the LED 40 is turned on and the moving table 2 is indicated by the arrow 9
Starts reciprocating movement in the 2,93 direction. The adjustment dial 35 as a movement range setting unit is for adjusting the width of the reciprocating movement of the movement table 2, that is, the movement range. As buttons for controlling the rough whetstone, an up button 31a and a down button 3
1b and a rotary button 31c are provided. Further, as buttons for controlling the finishing grindstone, the up button 32a and the down button 32 are similarly provided.
b, a rotary button 32c is provided. When the cycle stop button 37 as the operation stop input section is turned on, the moving table 2 moves to the end of the rail (not shown) and stops, and the blade 10 is replaced.

The specific procedure for polishing the blade 10 is as follows. First, the blade 10 is attached and fixed to the blade mounting base 6 of the moving table 2. And operation panel 4
The H automatic driving button 36 is turned on to start moving the moving table 2. After that, the moving table 2 repeats reciprocating movements in the directions of arrows 92 and 93 within a predetermined moving range.

After the movement of the moving table 2 is started, polishing with the rough grindstone 11K is first performed. In this case, operation panel 4
The H rotation button 31c is pressed to rotate the rough whetstone 11K. Then, the down button 31b is pressed to lower the whetstone base 31 in the direction of arrow 90. And the blade 10 and the rough whetstone 11
When it comes into contact with K, the depression of the descending button 31b is released to stop the descending of the grindstone base 31. The moving table 2 reciprocates within a predetermined moving range, and polishing is performed in this state.

When polishing with the rough whetstone 11K is completed, the lift button 31a is pressed to raise the whetstone base 31 in the direction of arrow 90. Then, the rotary button 31c is pressed again to press the rough whetstone 11
Stop rotation of K. Then, polishing with a finishing grindstone 12K is performed. When polishing of the finishing grindstone 12K is completed, the lift button 32a is pressed to raise the grindstone base 32, and the rotary button 32 is pressed again.
Press c to stop the rotation of the finishing grindstone 12K.

After finishing the polishing as described above, the cycle stop button 37 is pressed. According to the input of the cycle stop button 37, the moving table 2 is railed (not shown).
Return to the end of and stop. In the present embodiment, the width of the predetermined moving range in which the moving table 2 repeats reciprocating movement is
Adjustment is performed by rotating the adjustment dial 35 on the operation panel 4H.

FIG. 3 is a hardware configuration diagram of the polishing apparatus in this embodiment. CPU5 on the bus line 50
1, ROM52, RAM53 are connected, CPU
Reference numeral 51 controls each unit according to a program stored in the ROM 52. Adjustment dial 35 shown in FIG.
Are connected to the bus line 50 via the A / D converter 54. Various buttons other than the adjustment dial 35 provided on the operation panel 4H are also connected to the A / D converter 54, but they are omitted in FIG.

The reference position detection switch 8 is connected to the CPU 51 through an input port 55. The reference position detection signal output from the reference position detection switch 8 is the CPU 51.
The CPU 51 recognizes that the moving table 2 is located at the detection position as shown in FIG. Also, CP
U51 feeds the lifting motors 33, 3 through the output port 56
4. The rotations of the grindstone rotating motors 11 and 12 and the feed motor 22 are controlled. The control of these motors is performed according to ON / OFF operation of each button of the operation panel 4H. Furthermore C
A clock 58 serving as a movement amount counting unit is connected to the PU 51, and the clock 58 outputs a clock signal.

FIG. 4, FIG. 5 and FIG. 6 show flow charts of the movement range control in this embodiment. Hereinafter, the specific processing content executed by the CPU 51 will be described with reference to this flowchart. Automatic operation button 36 on operation panel 4H
When (FIG. 2) is turned on, the CPU 51 causes the A / D converter 5
4 (FIG. 3), this is recognized, the rotation of the feed motor 22 is started, and the movement of the moving table 2 is started (FIG. 4, step S2).

Then, the CPU 51 starts the protection timer (step S4). The limit movement time Y is stored in the ROM 52, and it is determined whether or not Y seconds have elapsed (step S6). For example, it is assumed that the limit movement time Y is set to 15 seconds. This limit travel time 15
The second is a set value for stopping the moving table 2 when the reference position detection switch 8 or the like is abnormal and the reference position cannot be detected. Therefore, a value larger than the time required for the moving table 2 to reach the reference position is set as the limit moving time Y.

When the reference position detection switch 8 has an abnormality such as a failure, the reference position signal is not given in step S10, and therefore the movement of the moving table 2 is stopped when the protection timer has passed 15 seconds ( Step S8). Then, in this case, an error is displayed, the operator is notified of the occurrence of the abnormality, and the processing ends.

When the reference position detection switch 8 is operating normally, the detection bar 20 moves to the reference position detection switch 8
The reference position detection signal is given at the time of reaching. That is, it is assumed that the moving table 2 is moving in the direction of the arrow 92 (FIG. 1), the detection bar 20 is in contact with the reference position detection switch 8 and is positioned as shown in FIG. In this case, the CPU
51 recognizes this via the input port 55 (step S10), and takes in the voltage value indicated by the adjustment dial 35 (step S12). Then, the timer value X indicating the amount of movement time is obtained from this voltage value (step S14). The timer value X is calculated according to a preset arithmetic expression.

An example of an arithmetic expression for obtaining the timer value X is shown in "Equation 1" below. The variable range of the voltage value by the adjustment dial 35 is 0V to 5V, and the adjustment range of the movement width is 200 mm to 500 mm. Then, the moving table 2 moves at a speed of 100 mm per second.

Detection bar 20, reference position detection switch 8
Detects that the moving table 2 is located substantially in the center of the moving range as shown in FIG. For this reason, for example, when the movement range is set to 200 mm, the movement table 2 may be rotated in the reverse direction at the time of movement of 100 mm from the detection of the reference position, that is, after 1 second. It is assumed that 0V to 5V varied by the adjustment dial 35 is output to the CPU 51 as a digital value a of 0 to 255. Further, it is assumed that a timer interrupt (see FIG. 5) described later is executed at intervals of 100 msec.

[0052]

[Equation 1]

Based on the above arithmetic expression, the timer value X
After that, the timer interrupt process is started (step S1).
6). That is, when the detection bar 20 contacts the reference position detection switch 8 and the reference position detection signal is output, the timer interrupt process starts. In the timer interruption, "1" is subtracted from the timer value X according to the clock signal output from the clock 58, and the value is stored as a new timer value X (step S50).

Then, the CPU 51 sets the timer value X to "0".
It is determined whether or not (step S18), and when it becomes "0", the timer interrupt is stopped (step S2).
0). Further, the CPU 51 gives a command to the feed motor 22 via the output port 56 to stop the movement of the moving table 2 (step S22), and subsequently gives a reverse rotation signal to rotate the feed motor 22 in the reverse direction (step S24). That is, the reverse rotation signal is output when the amount of change in the clock signal from the time when the reference position detection signal is received and the timer value X become equal.

For example, the moving table 2 moves in the direction of arrow 92 from the state shown in FIG. 1, and when the CPU 51 outputs a reverse rotation signal, the moving table 2 moves in the opposite direction (direction of arrow 93).
Will start moving towards. Then, after step S26 (FIG. 6), it is determined again whether or not the reference position signal is received (step S28). When the moving table 2 moves in the direction of arrow 93 and the detection bar 20 comes into contact with the reference position detection switch 8, the reference position signal is received, and the process returns to step S12 (FIG. 5) to repeat the above process.

As described above, the moving table 2 is indicated by the arrow 9
The width of the moving range for reciprocating in the 2,93 direction is regulated according to the timer value X. Then, this timer value X is determined based on the voltage value indicated by the adjustment dial 35. That is, by rotating the adjustment dial 35 and changing the timer value X, the moving table 2
It becomes possible to easily control the range of movement in which the robot reciprocates.

In this way, the movable table 2 reciprocates to polish the blade 10. When stopping the polishing work,
The operator presses the cycle stop button 37 (FIG. 2).
When the cycle stop button 37 is pressed, the CPU 51 recognizes this and proceeds from step S26 to step S30 to determine whether or not an initial position signal has been received.

As described above, the initial position signal is output when the initial position detection switch 5 detects the end position of the moving table 2. FIG. 7 shows a state in which the moving table 2 is located at the end. In the state shown in FIG. 7, the initial position detection switch 5 outputs an initial position signal, and the CPU 51 fetches this initial position signal via the input port 55 and stops the movement of the movement table 2 (step S32).

When the cycle stop button 37 is pressed, the moving table 2 stops at the end position as shown in FIG. 7, so that the rough whetstone 11K and the finishing whetstone 12K are obstructed when the blade 10 is removed and replaced. In addition, the workability is good and the safety can be secured.

[Second Embodiment] Next, FIG. 8 shows a hardware configuration diagram of a polishing apparatus according to a second embodiment of the present invention. In this embodiment, a timer circuit 57 is connected to the bus line 50, and a clock signal from a clock 58 is given to the timer circuit 57. CPU5
1 obtains the timer value X based on the voltage value of the adjustment dial 35, and supplies this timer value X to the timer circuit 57.

Details of the timer circuit 57 are shown in FIG. C
The timer value X from the PU 51 is captured and stored in the timer value storage circuit 71. At this point, the counter 73 is reset and starts counting according to the clock signal from the clock 58. Then, the comparison circuit 72 compares the timer value X stored in the timer value storage circuit 71 with the value of the counter 73, and when both match, the CPU 51
And outputs a coincidence signal toward.

The CPU 51 outputs a reverse rotation signal based on this coincidence signal to move the moving table 2 in the reverse direction.
According to this embodiment, the CPU 51 does not need to perform the timer interrupt processing shown in FIG. 5, and the processing content is simplified. The other mechanism and operation are similar to those of the first embodiment.

[Third Embodiment] Next, a third embodiment of the polishing apparatus according to the present invention will be described. In this embodiment, instead of the adjustment dial 35 in the first embodiment, setting buttons 110, 111, 112 shown in FIG. 10 are provided on the operation panel 4H as a moving range setting unit. CPU 51 is input port 5
The selection and pressing of the setting buttons 110, 111, and 112 are recognized through 5 and the moving range is 200 m according to the selection.
m, 300 mm, and 400 mm.

In the ROM 52 (FIG. 3), the timer value X corresponding to each moving range of 200 mm, 300 mm and 400 mm is set and stored in advance, and the reciprocating movement of the moving table 2 is performed according to the selected moving range. Control. The other mechanism and operation are similar to those of the first embodiment.

[Fourth Embodiment] A fourth embodiment of the polishing apparatus according to the present invention will be described. In this embodiment, instead of the adjustment dial 35 in the first embodiment, an increase button 115 and a decrease button 116 shown in FIG. 11 are provided on the operation panel 4H as a moving range setting unit.

The CPU 51 recognizes the depression of the increase button 115 and the decrease button 116 through the input port 55, and the ROM 5 is stored in advance.
The movement range stored in 2 (FIG. 3) is read and increased or decreased. Then, this moving range is set to the LED drive circuit 118.
LED is displayed on the display unit 117 via. This display 1
17 is also provided on the operation panel 4H.

The CPU 51 calculates the timer value X according to the moving range input by operating the increase button 115 and the decrease button 116, and controls the reciprocating movement of the moving table 2. Further, instead of executing the calculation, the timer value X corresponding to the input movement range may be read out based on the conversion table stored in the ROM 52 in advance, and the reciprocating movement of the movement table 2 may be controlled accordingly. it can. The other mechanism and operation are similar to those of the first embodiment.

[Fifth Embodiment] Next, a fifth embodiment of the polishing apparatus according to the present invention will be described. In the first embodiment,
Moving table 2 based on the timer value X indicating the amount of moving time
Controlled the range of movement for reciprocal movement. In contrast,
In the present embodiment, the movement range is controlled based on the rotation speed Y, which is the drive speed of the feed motor 22.

The operator sets the desired moving range to the adjustment dial 35 shown in the first embodiment, the setting buttons 110, 111 and 112 shown in the third embodiment, or the increase button shown in the fourth embodiment. 115, enter through the decrease button 116,
The rotation speed Y is calculated according to this input. On the other hand, the rotation speed of the feed motor 22 is detected as the detected rotation speed, and when the detected pulse number from the time when the moving table 2 reaches the reference position becomes equal to the rotation speed Y, the CPU 51 directs to the feed motor 22. Outputs a reverse rotation signal. Thus the rotation speed Y
The movement range is controlled in accordance with.

The flowcharts of the processes in this embodiment are shown in FIGS. 13, 14 and 15 below. The basic processing contents are the same as in the first embodiment, but in step S15 of FIG. 14, the voltage value indicated by the adjustment dial 35 is replaced with the rotation speed Y. An example of an arithmetic expression for obtaining the rotation speed Y is shown in "Equation 2" below. The variable range of the voltage value by the adjustment dial 35 is 0V to 5V, and the adjustment range of the movement width is 200 mm to 500 mm. The rotation when the moving table 2 moves 100 mm is 100.

Detection bar 20 and reference position detection switch 8
Detects that the moving table 2 is located substantially in the center of the moving range. Therefore, for example, the moving range is 200m
When the distance is set to m, the moving table 2 may be rotated in the reverse direction at the time of 100 mm movement from the detection of the reference position, that is, after the feed motor 22 has rotated 100 pulses. 0V to 5V varied by the adjustment dial 35 is 0 to 25V.
It is assumed that the digital value a of 5 is output to the CPU 51.

[0072]

[Equation 2]

After the rotation speed Y is obtained in this way, the counting of the detected rotation speed Y'is started (step S17).
The detected rotation speed Y ′ of the feed motor 22 is detected by a mechanism as shown in FIG. 12, for example. FIG. 12A shows the feed motor 2
2 is a side view and FIG. 12B is a rear view of the feed motor 22.

Motor shaft 22J on the back side of the feed motor 22
A slit plate 22M having a detection hole 22K formed therein is fixed to. Then, the rotation detector 23 is provided close to the slit plate 22M. The rotation detector 23 includes a light emitting element and a light receiving element, and is provided so that the light emitting element and the light receiving element are positioned with the slit plate 22M interposed therebetween.
That is, the rotation speed of the feed motor 22 can be detected by the number of times the rotating slit plate 22M is shielded.

The detection signal from the rotation detector 23 is taken into the CPU 51 via the input / output conversion circuit 25. In addition,
Instead of the light emitting element and the light receiving element, a limit switch may be provided to count the contact with the protrusion of the slit plate 22M. Further, the detected rotation speed Y ′ can be counted by the magnet and the magnetic sensor.

After the count of the detected rotation speed Y'is started in step S17, it is determined whether or not the rotation speed Y and the detected rotation speed Y'become equal, and the detected rotation speed Y'reaches the rotation speed Y. At this point, the movement of the movement table 2 is stopped (step S
22), the CPU 51 outputs a reverse rotation signal to move the moving table 2 in the reverse direction (step S24).

As described above, the width of the reciprocating movement of the moving table 2 is controlled based on the rotation speed Y. 13 and 1
4 and other processes in the flowchart of FIG. 15 are the same as those in the first embodiment. The detected rotation speed Y'is
It is also possible to obtain the number of output signals from the output port 56 (FIG. 3) to the feed motor 22 by the CPU 51 counting.

Other Embodiments In each of the above embodiments,
The moving table 2 is reciprocally moved by the feed motor 22 to polish the blade 10. However, it is also possible to fix the table side to which the blade 10 is attached, and reciprocally move the polishing portions of the rough whetstone 11K and the finishing whetstone 12K by the feed motor 22 to perform the polishing work.

In each of the above embodiments, the detection bar 20 is provided near the center of the moving table 2, and the reference position detecting switch 8 detects the substantially central position of the moving range. As another embodiment, for example, the detection bar 20 of FIG. 1 may be provided at the attachment position 20E and the reference position detection switch 8 at the attachment position 8E to detect the substantially central position of the movement range. By detecting substantially the center of the moving range, the adjustment length of the moving range can be reduced to about 1/2.

In the above embodiment, the detection bar 20 and the reference position detection switch 8 which is the limit switch are used as the reference position detector. However, it is also possible to detect the reference position by using, for example, a magnet and a magnetic sensor (hall element), a reflection mark and an optical sensor (light emitting element and light receiving element), and the like. Similarly, with respect to the initial position detection switch, the initial position can be detected by using a magnet and a magnetic sensor, a reflection mark and an optical sensor, or the like.

The present invention is not limited to that shown in the above-mentioned embodiment, but any other method can be used as long as the input of the moving time of the moving table can be easily changed and the moving range can be adjusted by this. A configuration may be adopted. Further, a combination of the above embodiments may be adopted.

[0082]

In the polishing apparatus according to the first aspect of the present invention, the predetermined moving range is input to the moving range setting section, and the moving range set value is set based on this moving range. Further, the reference position detector detects the reference position of the moving table or the polishing section and outputs a reference position detection signal, and the movement amount counting section is activated by the reference position detection signal to detect the movement amount of the moving table or the polishing section. Count. Then, the moving range setting value set in the moving range setting unit is compared with the count value of the moving amount counting unit, and when the two values match, a reverse rotation signal is output to the drive unit.

In this way, the reverse rotation signal is output according to the movement range setting value set in the movement range setting section, and the movement table or the polishing section moves in the opposite direction. Therefore, by inputting a desired movement range through the movement range setting unit, the movement range can be freely controlled. Therefore, the movement range can be adjusted easily and accurately.

In the polishing apparatus according to the second aspect, the operation start command input through the operation start input unit is given to the drive unit, and when the drive start command is given, the drive unit moves the moving table or the polishing unit. Move it toward the reference position.

Thus, only by inputting the operation start command, the moving table or the polishing section moves toward the reference position, and after reaching the reference position, reciprocates within the predetermined movement range as described above. Therefore, it does not take much time to start the polishing operation, and the work efficiency can be improved.

In the polishing apparatus according to the third aspect, the limit moving time or the limit drive number is set and stored in the controller. Then, the control unit, the change time and the limit movement time of the measured value from the time when the operation start command is given to the drive unit,
Alternatively, the stop signal is output when the change amount of the detected drive number from the time when the operation start command is given to the drive unit becomes equal to the limit drive number. The drive unit receives the stop signal and stops the movement of the moving table or the drive unit.

After the operation start command is given in this way,
When the limit movement time or the limit drive number is reached, the movement of the movement table or the drive unit is stopped. Therefore, even if, for example, the reference position detector is abnormal and the reference position detection signal is not output, the moving table or the drive unit is stopped when the preset limit is reached. Therefore, even if an abnormality occurs, it is possible to avoid overloading the drive unit.

In the polishing apparatus according to the fourth aspect, the initial position for detecting that the moving table or the polishing section is located at the replacement initial position of the object to be polished and outputting the initial position detection signal to the drive section. It is equipped with a detector. Further, the operation stop command input through the operation stop input unit is given to the drive unit, and when the operation stop command is given, the drive unit moves the moving table or the drive unit in the direction toward the replacement initial position. Then, the drive unit stops the movement of the moving table or the drive unit when the initial position detection signal is given.

Thus, only by inputting the operation stop command, the moving table or the drive unit stops at the replacement initial position. Therefore, the movement of the moving table or the driving unit is stopped, and it is possible to improve the working efficiency without any trouble when exchanging the object to be polished, and it is also excellent in safety.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment of a polishing apparatus according to the present invention.

FIG. 2 is a view showing an operation panel of the polishing apparatus shown in FIG.

FIG. 3 is a hardware configuration diagram of the polishing apparatus shown in FIG.

4 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

5 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

6 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

7 is a diagram showing a state in which the moving table is located at an initial position in the polishing apparatus shown in FIG.

FIG. 8 is a hardware configuration diagram of a polishing apparatus according to a second embodiment of the present invention.

9 is a diagram showing details of the timer circuit shown in FIG. 8. FIG.

FIG. 10 is a view showing a setting button in a polishing apparatus according to a third embodiment of the present invention.

FIG. 11 is a diagram showing an increase button, a decrease button, and a display section in a polishing apparatus according to a fourth embodiment of the present invention.

FIG. 12 is a view showing a detection rotation speed detection mechanism of a feed motor in a polishing apparatus according to a fifth embodiment of the present invention.

FIG. 13 is a flowchart showing a moving range adjustment program in the fifth embodiment.

FIG. 14 is a flowchart showing a movement range adjustment program in the fifth embodiment.

FIG. 15 is a flowchart showing a movement range adjustment program in the fifth embodiment.

FIG. 16 is an overall configuration diagram showing a conventional polishing apparatus.

17 is a view showing a control mechanism for reciprocating movement of the moving table in the polishing apparatus shown in FIG.

FIG. 18 is an overall configuration diagram showing another conventional polishing apparatus.

19 is a perspective view showing details of a detection bar of the conventional polishing apparatus shown in FIG.

[Explanation of symbols]

 2 ... Moving table 5 ... Initial position detection switch 8 ... Detection switch 10 ... Blade 11 ... Rough whetstone 12 ... Finishing whetstone 20 ... Detection bar 22 ... Feed motor 23 ... Rotation detector 35 ... Adjustment dial 36 ... Automatic operation button 37 ... Cycle Stop button 51 ... CPU 58 ... Clock 110, 111, 112 ... Setting button 115 ... Increase button 116 ... Decrease button

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] July 25, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 4

[Correction method] Change

[Correction content]

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

The movable table 60 is provided with an operating rod 60T, and limit switches 101 and 102 are located at both ends of the reciprocating range of the movable table 60.
The limit switches 101 and 102 are the frame 69.
(Fig. 16) . Limit switch 10
1, 102 are located on the orbit of the operating rod 60T that reciprocates, and contact with the operating rod 60T causes reciprocating movement range
Detect edges .

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

For example, when the moving table 60 moves in the direction of arrow 92 from the state shown in FIG. 17, the operating rod 60T
Contacts the limit switch 102. Then, the limit switch 102 is turned on, and this ON signal is applied to the lead wire 1.
It is given to the control circuit 107 via 08 . Control circuit 1
In response to this, 07 reverses the rotation direction of the motor 106 and moves the moving table 60 in the direction of arrow 93.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

Then, when the operating rod 60T comes into contact with the limit switch 101, the control circuit 107 causes the motor 10 to again operate.
The rotation direction of 6 is reversed and the moving table 60 is moved to the arrow 92.
Move in the direction. In this way, the moving table 60 repeats reciprocating movements in the directions of arrows 92 and 93 based on the operation of the limit switches 101 and 102 by the operating rod 60T. In addition, in FIG. 17, the grindstone rotation motors 11, 1
2, the rough whetstone 11K, the finishing whetstone 12K, etc. are omitted.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

[0021]

According to a first aspect of the present invention, there is provided a polishing apparatus comprising: a moving table to which a polishing object is attached; a polishing section for polishing the polishing object attached to the moving table;
In a polishing device provided with a drive unit that receives a reverse signal from the control unit, switches the moving direction of the moving table or the polishing unit to the opposite direction, and reciprocates the moving table or the polishing unit within a predetermined reciprocating range. the reciprocation range of the input, the movement range setting unit for setting a movement range setting value on the basis of the reciprocal movement range, to detect the reference position of the moving table or polishing unit, the reference position detector for outputting a reference position detection signal , A movement amount counting unit that is activated by the reference position detection signal and counts the movement amount of the movement table or the polishing unit, and the movement range setting value set in the movement range setting unit and the movement amount counting unit. It is characterized in that the count value is compared and a reverse rotation signal is output to the drive unit when both values match.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

The polishing apparatus according to claim 2, in the polishing apparatus according to claim 1, operation start command input through the operation start input unit is given to the control unit, the control unit is the operation starting command is given When the moving table or polishing section
To control the driving unit so as but moves in a direction toward the reference position
That, it is characterized in that.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

A polishing apparatus according to a third aspect is the polishing apparatus according to the second aspect, wherein the moving table or the polishing unit is
Move from the polishing object replacement position outside the return movement range to the reference position
The limit moving time that exceeds the time required to move is remembered
The limit movement time setting unit and the control unit
Of the moving table or polishing section from the time the order was given
Equipped with a moving time counting unit that counts the moving time,
The control part is the limit travel time stored in the limit travel time setting part.
And the moving table or polishing counted by the moving time counter
Of the reference position from the reference position detector.
Before the position detection signal is output , a stop signal is output when both times match , and the drive unit receives the stop signal and stops the movement of the moving table or the polishing unit .

[Procedure Amendment 11]

[Document name to be amended] Statement

[Name of item to be corrected] 0024

[Correction method] Change

[Correction content]

The polishing apparatus according to claim 4, in the polishing apparatus according to claim 1, the moving table or polishing unit, forward
It is equipped with an initial position detector that detects that it is located at the polishing object replacement position outside the backward movement range and outputs an initial position detection signal to the control unit, and the operation input through the operation stop input unit. stop command is given to the control unit, the control unit when the operation stop command is given, the moving table or polishing unit is moved in the direction toward the object to be polished exchange position
Controls cormorants drive unit, the control unit when the initial position detection signal is applied, causes stop the movement of the moving table or polishing unit controls the drive unit, is characterized in that.

[Procedure Amendment 12]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

[0025]

In the polishing apparatus according to the first aspect, a predetermined reciprocal movement range is input to the movement range setting section, and the movement range set value is set based on this reciprocation movement range. Further, the reference position detector detects the reference position of the moving table or the polishing section and outputs a reference position detection signal, and the movement amount counting section is activated by the reference position detection signal to detect the movement amount of the moving table or the polishing section. Count. Then, the moving range setting value set in the moving range setting unit is compared with the count value of the moving amount counting unit, and when the two values match, a reverse rotation signal is output to the drive unit.

[Procedure Amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction content]

As described above, the reverse rotation signal is output according to the movement range setting value set in the movement range setting section, and the movement table or the polishing section moves in the opposite direction. Therefore, the desired reciprocating movement range can be freely controlled by inputting it through the movement range setting unit.

[Procedure Amendment 14]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

[0027] In the polishing apparatus according to claim 2, the operation start command input through the operation start input unit is given to the control unit, the control unit when the operation start command is given, the moving table or polishing unit The drive unit is controlled so as to move in the direction toward the reference position.

[Procedure Amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction content]

By just inputting the operation start command in this way, the moving table or the polishing section moves toward the reference position, and after reaching the reference position, reciprocates within the predetermined reciprocating range as described above. .

[Procedure Amendment 16]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

In the polishing apparatus according to claim 3, the limit
A moving table or polishing unit can be reciprocated in the moving time setting unit.
Move from the polishing object replacement position outside the movement range to the reference position
The limit travel time required to do is stored. Well
In addition, the movement time counting unit receives the operation start command from the drive unit.
The moving time of the moving table or polishing unit from the
Count. Then, the control unit writes the limit travel time setting unit.
The stored limit movement time and the movement time counted by the movement time counting unit
Moving table or polishing section movement time is compared
Before the reference position detection signal from the position detector is output,
When the times match , the stop signal is output, and the drive unit receives the stop signal and stops the movement of the moving table or the polishing unit.

[Procedure Amendment 17]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

As described above, the control unit outputs a stop signal to output a stop signal to the moving table or the polishing unit when the limit moving time and the moving time of the moving table or the polishing unit coincide with each other when the reference position detection signal is not output. Stop moving.

[Procedure 18]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Change

[Correction content]

In the polishing apparatus according to the fourth aspect, the moving table or the polishing unit has a polishing object outside the reciprocating range.
It is provided with an initial position detector that detects that it is located at the replacement position and outputs an initial position detection signal to the control unit. The operation stop command inputted through the operation stop input unit is given to the control unit, when the control unit was given the operation stop command, the mobile table or controls the drive unit
The polishing unit is moved in the direction toward the polishing object replacement position .
Then, when the control unit receives the initial position detection signal,
Controls the driving unit causes stop the movement of the moving table or polishing unit.

[Procedure Amendment 19]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

Thus, only by inputting the operation stop command, the moving table or the polishing section is stopped at the polishing object replacement position .

[Procedure amendment 20]

[Document name to be amended] Statement

[Correction target item name] 0035

[Correction method] Change

[Correction content]

A detection bar 20 is fixed to the bottom surface of the moving table 2 and moves integrally with the moving table 2. On the other hand, the frame 4 is provided with a reference position detection switch 8 which is a reference position detector, and detects the detection bar 20. The reference position detection switch 8 is the center of the rough whetstone 11K and the finishing whetstone 12K.
The blade 10 attached to the moving table 2 with respect to the position
Abuts on the detection bar 20 at approximately the center position (reference position) of
That it is provided at a position, and outputs a reference position detection signal at the time of the contact with the detecting bar 20.

[Procedure correction 21]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction content]

Further, the frame 4 the initial position detection switch 5 is the initial position detector is also provided, which outputs an initial position detection signal at the time of the contact with the detecting bar 20.
The initial position detection switch 5 is a replacement position for the blade 10 outside the reciprocating range of the reciprocating moving table 2 (the object to be polished).
It is provided at a position for detecting a replacement position) . The reference position detection switch 8 and the initial position detection switch 5 are limit switches.

[Procedure correction 22]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction content]

FIG. 2 shows the operation panel 4H of the polishing apparatus shown in FIG. Turn on the automatic operation button 36 as the operation start input section
When it is N, the LED 40 is turned on and the moving table 2 is indicated by the arrow 9
Start moving in 3 directions. The adjustment dial 35 as the movement range setting unit is for adjusting the width of the reciprocating movement of the moving table 2, that is, the reciprocating movement range. An ascending button 31a, a descending button 31b, and a rotating button 31c are provided as buttons for controlling the rough whetstone. As buttons for controlling the finishing grindstone, an up button 32a, a down button 32b, and a rotation button 32c are similarly provided. When the cycle stop button 37 as the operation stop input section is turned on, the moving table 2 is indicated by the arrow 9
Starting the movement in two directions, the initial position detection switch 5
Move to the replacement position of the blade 10 that outputs the initial position detection signal
Move.

[Procedure amendment 23]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction content]

The specific procedure for polishing the blade 10 is as follows. First, the blade 10 is attached and fixed to the blade mounting base 6 of the moving table 2. And operation panel 4
Turn on the automatic operation button 36 of H to count the moving time counting section.
Start and move in the direction of arrow 93 on the moving table 2 .
To start moving. After that, the moving table 2 is at the standard position.
A count value that is counted based on the position signal and a movement range setting unit
The reverse signal output according to the agreement with the set value of
Thus, the reciprocating movement in the directions of the arrows 92 and 93 is repeated within the predetermined reciprocating movement range.

[Procedure correction 24]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction content]

After starting the reciprocating movement of the moving table 2,
First, polishing with a rough whetstone 11K is performed. In this case, the rotation button 31c of the operation panel 4H is pressed to rotate the rough whetstone 11K. Then, the down button 31b is pressed to lower the whetstone base 31 in the direction of arrow 90. And the blade 10 and the rough whetstone 1
At the time of contact with 1K, the depression of the descending button 31b is released to stop the descending of the wheel head 31. The moving table 2 reciprocates within a predetermined moving range, and polishing is performed in this state.

[Procedure correction 25]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction content]

[0042] When the polishing by rough grindstone 11K completed, raise the wheel head 31 by pressing the increase button 31a in the arrow 9 1 direction. Then, the rotary button 31c is pressed again to press the rough whetstone 11
Stop rotation of K. Then, polishing with a finishing grindstone 12K is performed. When polishing of the finishing grindstone 12K is completed, the lift button 32a is pressed to raise the grindstone base 32, and the rotary button 32 is pressed again.
Press c to stop the rotation of the finishing grindstone 12K.

[Procedure Amendment 26]

[Document name to be amended] Statement

[Correction target item name] 0043

[Correction method] Change

[Correction content]

After finishing the polishing as described above, the cycle stop button 37 is pressed. In accordance with the input of the cycle stop button 37, the moving table 2 moves in the direction of arrow 92.
Then, at the time when the replacement position of the blade 10 is reached, the initial position detection scan is performed.
The initial position detection signal is output from the switch 5, and the moving table
Le2 will stop. In the present embodiment, the width of a predetermined moving range in which the moving table 2 repeats reciprocating movement is set to the operation panel 4H.
Adjustment is performed by rotating the upper adjustment dial 35.

[Procedure Amendment 27]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction content]

FIG. 3 is a hardware configuration diagram of the polishing apparatus in this embodiment. CPU5 on the bus line 50
1, ROM52, RAM53 are connected, CPU
Reference numeral 51 controls each unit according to a program stored in the ROM 52. In addition, in this ROM 52,
Since the moving table 2 moves from the exchange position to the reference position
Limit to remember the limit travel time that exceeds the time required for
A field travel time setting unit is also provided. The adjustment dial 35 shown in FIG. 2 is connected to the bus line 50 via the A / D converter 54. It should be noted that various buttons other than the adjustment dial 35 provided on the operation panel 4H can be used for the A / D converter 5 as well.
4 but is omitted in FIG.

[Procedure correction 28]

[Document name to be amended] Statement

[Name of item to be corrected] 0045

[Correction method] Change

[Correction content]

The CPU 51 has a reference position detecting switch 8 and an initial position detecting switch 5 through an input port 55.
Are connected. The reference position detection signal output from the reference position detection switch 8 is given to the CPU 51,
Recognizes that the moving table 2 is located at the detection position as shown in FIG. The initial position detection switch 5 outputs
The initial position detection signal is also given to the CPU 51, and the CPU 51
Indicates that the moving table 2 has reached the replacement position of the blade 10.
recognize. Further, the CPU 51 controls the rotations of the lifting motors 33 and 34, the grindstone rotating motors 11 and 12, and the feed motor 22 through the output port 56. The control of these motors is performed by the CPU 51 based on the operation of each button of the operation panel 4H.
The rotation control signal is used. Further CPU5
A clock 58 as a movement amount counting unit and a movement time counting unit is connected to 1, and the clock 58 outputs a clock signal.

[Procedure correction 29]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction content]

FIG. 4, FIG. 5 and FIG. 6 show flow charts of the movement range control in this embodiment. Hereinafter, the specific processing content executed by the CPU 51 will be described with reference to this flowchart. Automatic operation button 36 on operation panel 4H
When (FIG. 2) is turned on, the CPU 51 causes the A / D converter 5
4 (FIG. 3), this is recognized, the rotation of the feed motor 22 is started, and the movement of the moving table 2 is started (FIG. 4, step S2).

[Procedure amendment 30]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction content]

Then, the CPU 51 causes the moving time counting unit (
Counting by the lock 58) is started (step S4). The ROM 52 stores the limit movement time Y, and it is determined whether or not Y seconds have elapsed (step S
6). For example, it is assumed that the limit movement time Y is set to 15 seconds. This limit travel time is
The rail of the cable 2 is curved, and the rail has polishing dust etc.
Wear, and the movement of the moving table 2 is abnormal,
The feed motor 22 when the motor 22 is overloaded.
This is the setting value for stopping the. Therefore, this travel time required for the moving table 2 reaches the reference position
Obtain limit travel time Y is set. Feed motor 22
Of the feed motor 22 by stopping the driving of the feed motor 22.
Loss can be prevented.

[Procedure correction 31]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction content]

Reference position detection from the reference position detection switch 8
Before the output signal is output in step S10,
The count value (count value) of some parts reaches the limit moving time of 15 seconds.
If so, the movement of the movement table 2 is abnormal at that time.
When it is determined that there is (step S6), the movement of the movement table 2 is stopped (step S8). Then, in this case, an error is displayed, the operator is notified of the occurrence of the abnormality, and the processing ends.

[Procedure correction 32]

[Document name to be amended] Statement

[Correction target item name] 0049

[Correction method] Change

[Correction content]

When the movable table 2 is operating normally, the reference position detection signal is given when the detection bar 20 reaches the reference position detection switch 8. That is, if the moving table 2 is moving in the direction of the arrow 9 3 (FIG. 1) and the detection bar 20 contacts the reference position detection switch 8,
It is assumed that the position is as shown in FIG. In this case, the CPU 51 recognizes this via the input port 55 (step S1).
0), the voltage value indicated by the adjustment dial 35 is fetched (step S12). Then, the timer value X indicating the amount of movement time is obtained from this voltage value (step S14). The timer value X is calculated according to a preset arithmetic expression.

[Procedure amendment 33]

[Document name to be amended] Statement

[Correction target item name] 0055

[Correction method] Change

[Correction content]

[0055] For example, moving table 2 from the state shown in FIG. 1 is moved in the arrow 9 three directions, the moving table 2 reverse when the CPU51 is to output a reverse rotation signal (arrow 9 2 direction)
Will start moving towards. Then, step S26 again via (FIG. 6), it determines whether it has received a reference position signal (step S28). Moving table 2 is moved in the arrow 9 two directions, receives a reference position signal when the detection bar 20 is in contact with the reference position detection switch 8, the flow returns to step S12 (FIG. 5) to repeat the above processing.

[Procedure amendment 34]

[Document name to be amended] Statement

[Correction target item name] 0059

[Correction method] Change

[Correction content]

When the cycle stop button 37 is pressed, the moving table 2 is moved from the end of the reciprocating range as shown in FIG.
Since it stops at the outer position (replacement position) , the rough grindstone 11K and the finishing grindstone 12K do not become an obstacle during the work of removing and attaching the blade 10, and the workability is good and the safety can be secured.

[Procedure amendment 35]

[Document name to be amended] Statement

[Correction target item name] 0075

[Correction method] Change

[Correction content]

The detection signal from the rotation detector 23 is input to the input port.
It is taken into the CPU 51 via the port 55 . A limit switch may be provided in place of the light emitting element and the light receiving element to count the contact with the protrusion of the slit plate 22M.
Further, the detected rotation speed Y ′ can be counted by the magnet and the magnetic sensor.

[Procedure correction 36]

[Document name to be amended] Statement

[Correction target item name] 0080

[Correction method] Change

[Correction content]

In the above embodiment, the detection bar 20 and the reference position detection switch 8 which is the limit switch are used as the reference position detector. However, in addition to this, it is also possible to detect the reference position using a magnet and a magnetic sensor (Hall element), a reflection mark and an optical sensor (a light emitting element and a light receiving element), and the like. Similarly, with respect to the initial position detection switch, the initial position can be detected by using a magnet and a magnetic sensor, a reflection mark and an optical sensor, or the like.

[Procedure amendment 37]

[Document name to be amended] Statement

[Correction target item name] 0082

[Correction method] Change

[Correction content]

[0082]

Effects of the Invention] In the polishing apparatus according to claim 1, the predetermined reciprocating movement range the movement range setting unit is input, the forward
The moving range set value is set based on the backward moving range. Further, the reference position detector detects the reference position of the moving table or the polishing section and outputs a reference position detection signal, and the movement amount counting section is activated by the reference position detection signal to detect the movement amount of the moving table or the polishing section. Count. Then, the moving range setting value set in the moving range setting unit is compared with the count value of the moving amount counting unit, and when the two values match, a reverse rotation signal is output to the drive unit.

[Procedure amendment 38]

[Document name to be amended] Statement

[Name of item to be corrected] 0083

[Correction method] Change

[Correction content]

In this way, the reverse rotation signal is output according to the movement range setting value set in the movement range setting section, and the movement table or the polishing section moves in the opposite direction. Therefore, the desired reciprocating movement range can be freely controlled by inputting it through the movement range setting unit. Therefore,
It is possible to easily and accurately adjust the reciprocating range.

[Procedure amendment 39]

[Document name to be amended] Statement

[Correction target item name] 0084

[Correction method] Change

[Correction content]

[0084] In the polishing apparatus according to claim 2, the operation start command input through the operation start input unit is given to the control unit, the control unit when the operation start command is given, the moving table or polishing unit The drive unit is controlled so as to move in the direction toward the reference position.

[Procedure amendment 40]

[Document name to be amended] Statement

[Correction target item name] 0085

[Correction method] Change

[Correction content]

Thus, only by inputting the operation start command, the moving table or the polishing section moves toward the reference position, and after reaching the reference position, reciprocates within the predetermined reciprocating range as described above. . Therefore, remove the object to be polished.
After the attachment, it does not take much time to start the polishing operation and the working efficiency can be improved.

[Procedure Amendment 41]

[Document name to be amended] Statement

[Correction target item name] 0086

[Correction method] Change

[Correction content]

In the polishing apparatus according to claim 3, there is a limit.
A moving table or polishing unit can be reciprocated in the moving time setting unit.
Move from the polishing object replacement position outside the movement range to the reference position
The limit travel time required to do is stored. Well
In addition, the movement time counting unit receives the operation start command from the control unit.
The moving time of the moving table or polishing unit from the
Count. Then, the control unit writes the limit travel time setting unit.
The stored limit movement time and the movement time counted by the movement time counting unit
Moving table or polishing section movement time is compared
Before the reference position detection signal from the position detector is output,
When the times match , the stop signal is output, and the drive unit receives the stop signal and stops the movement of the moving table or the polishing unit.

[Procedure amendment 42]

[Document name to be amended] Statement

[Correction target item name] 0087

[Correction method] Change

[Correction content]

As described above, the control unit outputs the reference position detection signal.
Limit movement time and movement table
If the movement time of the tool or polishing unit matches, the stop signal
Ru <br/> outputs to stop the movement of the moving table or polishing unit. Therefore, for example, the rails of a moving table, etc.
Even when an abnormality occurs in the mechanism and the reference position detection signal is not output, the moving table or the polishing section is stopped when the preset limit moving time is reached. Therefore, even if an abnormality occurs, it is possible to avoid overloading the drive unit and prevent burnout of the drive unit.
Rukoto is Ru can.

[Procedure amendment 43]

[Document name to be amended] Statement

[Correction target item name] 0088

[Correction method] Change

[Correction content]

In the polishing apparatus according to the fourth aspect, the movable table or the polishing unit is a polishing object outside the reciprocating range.
It is provided with an initial position detector that detects that it is located at the replacement position and outputs an initial position detection signal to the control unit. The operation stop command inputted through the operation stop input unit is given to the control unit, when the control unit was given the operation stop command, the mobile table or controls the drive unit
The polishing unit is moved in the direction toward the polishing object replacement position .
Then, when the control unit receives the initial position detection signal,
Controls the driving unit causes stop the movement of the moving table or polishing unit.

[Procedure correction 44]

[Document name to be amended] Statement

[Correction target item name] 0089

[Correction method] Change

[Correction content]

Thus, only by inputting the operation stop command, the moving table or the polishing section stops at the polishing object replacement position . Therefore, it is possible to stop the movement of the moving table or the polishing section and to increase the work efficiency without exchanging the object to be polished, and further it is excellent in safety.

[Procedure amendment 45]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a first embodiment of a polishing apparatus according to the present invention.

FIG. 2 is a view showing an operation panel of the polishing apparatus shown in FIG.

FIG. 3 is a hardware configuration diagram of the polishing apparatus shown in FIG.

4 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

5 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

6 is a flowchart showing a program for adjusting a moving range in the polishing apparatus shown in FIG.

7 is a diagram showing a state in which the moving table is located at an initial position in the polishing apparatus shown in FIG.

FIG. 8 is a hardware configuration diagram of a polishing apparatus according to a second embodiment of the present invention.

9 is a diagram showing details of the timer circuit shown in FIG. 8. FIG.

FIG. 10 is a view showing a setting button in a polishing apparatus according to a third embodiment of the present invention.

FIG. 11 is a diagram showing an increase button, a decrease button, and a display section in a polishing apparatus according to a fourth embodiment of the present invention.

FIG. 12 is a view showing a detection rotation speed detection mechanism of a feed motor in a polishing apparatus according to a fifth embodiment of the present invention.

FIG. 13 is a flowchart showing a moving range adjustment program in the fifth embodiment.

FIG. 14 is a flowchart showing a movement range adjustment program in the fifth embodiment.

FIG. 15 is a flowchart showing a movement range adjustment program in the fifth embodiment.

FIG. 16 is an overall configuration diagram showing a conventional polishing apparatus.

FIG. 17 is a diagram showing a control mechanism for reciprocating movement of a moving table in a conventional polishing apparatus.

FIG. 18 is an overall configuration diagram showing another conventional polishing apparatus.

19 is a perspective view showing the details of the detection bar of the conventional polishing apparatus shown in FIG 8.

[Explanation of symbols] 2 ... Moving table 5 ... Initial position detection switch 8 ... Reference position detection switch 10 ... Blade 11 K ... Coarse whetstone 12 K: Finishing whetstone 20: Detection bar 22: Feed motor 23: Rotation detector 35: Adjustment dial 36: Automatic operation Button 37 ... Cycle stop button 51 ... CPU 58 ... Clock 110, 111, 112 ... Setting button 115 ... Increase button 116 ... Decrease button

[Procedure correction 46]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure amendment 47]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure correction 48]

[Document name to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

[Figure 8]

[Procedure correction 49]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11

[Procedure amendment 50]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 12

[Correction method] Change

[Correction content]

[Fig. 12]

[Procedure correction 51]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 13

[Correction method] Change

[Correction content]

[Fig. 13]

Claims (4)

[Claims] 1. A moving table to which a polishing object is attached, a polishing section for polishing an object to be polished attached to the moving table, and a reversing signal from a control section to reverse the moving direction of the moving table or the polishing section. In the polishing apparatus equipped with the moving table or the drive unit that reciprocates the polishing unit within a predetermined moving range, a predetermined moving range is input, and a moving range setting value is set based on the moving range. A reference position detector that detects the reference position of the setting unit, the moving table or the polishing unit, and outputs a reference position detection signal, and a movement amount counting that starts by the reference position detection signal and counts the movement amount of the moving table or the polishing unit. Section and compares the moving range set value set in the moving range setting section with the count value of the moving amount counting section. Outputs a reverse rotation signal to the driving unit, a polishing apparatus characterized by. 2. The polishing apparatus according to claim 1, wherein the operation start command input through the operation start input unit is given to the drive unit, and the drive unit moves the movement table or the polishing unit when the operation start command is given. Is moved in a direction toward the reference position. 3. The polishing apparatus according to claim 2, wherein the control unit sets and stores a limit movement time or a limit drive number, and the control unit starts from the time when the operation start command is given to the drive unit. When the change time of the measured value and the limit movement time, or the change amount of the detected drive number from the time when the operation start command is given to the drive unit and the limit drive number become equal, a stop signal is output. The polishing apparatus, wherein the drive unit receives the stop signal and stops the movement of the moving table or the drive unit. 4. The polishing apparatus according to claim 1, wherein an initial stage of detecting that the moving table or the polishing section is located at a replacement initial position of an object to be polished and outputting an initial position detection signal to the driving section. Equipped with a position detector, the operation stop command input through the operation stop input section is given to the drive section, and when the operation stop instruction is given, the drive section directs the moving table or the drive section to the replacement initial position. And a driving unit stops moving the moving table or the driving unit when the initial position detection signal is given.